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TL494CDG Datasheet(PDF) 9 Page - ON Semiconductor |
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TL494CDG Datasheet(HTML) 9 Page - ON Semiconductor |
9 / 14 page TL494, NCV494 http://onsemi.com 9 Figure 14. Error−Amplifier Sensing Techniques Figure 15. Deadtime Control Circuit Figure 16. Soft−Start Circuit Figure 17. Output Connections for Single−Ended and Push−Pull Configurations VO To Output Voltage of System R1 1 2 Vref R2 + Error Amp Positive Output Voltage VO = Vref 1 + R1 3 + 1 2 Vref R2 VO R1 Negative Output Voltage − To Output Voltage of System Error Amp − VO = Vref R1 R1 R2 Output Control Output Q RT CT DT Vref 4 5 6 0.001 30k R1 R2 Max. % on Time, each output ≈ 45 − 80 1 + Output Q Vref 4 DT CS RS Output Control Single−Ended Q1 Q2 QC 1.0 mA to 500 mA QE 2.4 V ≤ VOC ≤ Vref Push−Pull Q1 Q2 C1 E1 C2 E2 1.0 mA to 250 mA Output Control 0 ≤ VOC ≤ 0.4 V C1 E1 C2 E2 R2 R2 1.0 mA to 250 mA |
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